?亚洲激情小说视频,中文字幕在线成人Av,JapaneseAV高码AV

黄页拍拍拍国产18_午夜久久影院_日韩特级无码激情电影_国产激情综合在线视频_精品午夜视频在线观看91_亚洲免费无码一区二区_最新精品国产九九亚洲鸥美三级_一同看彩虹小蓝2023用户反馈_强乱中文字幕av一区乱码_亚洲高清欧美色中文字幕在线

Decoration Q&A
Here:HomeNewsIndustry dynamicsWhat should we pay attention to before performing a magnetic resonance examination?

What should we pay attention to before performing a magnetic resonance examination?

Classification:Industry dynamicsTime:2021-03-26 12:51
Shar

1. Preparation for metal and magnetic substances

Because magnetic resonance imaging requires the use of electromagnetic waves to generate images of body structures, and there is a strong magnetic field inside the machine, metal and magnetic substances may interact to interfere with the results or cause damage to patients. Therefore, the following preparations need to be made in advance.

Preparation of personal belongings

Do not carry or wear the following substances: belt buckles, metal zippers, snap buckles, watches, wallet with magnetic stripe bank cards or credit cards, umbilical rings, foot rings, etc;

Wear shirts or blouses that are easy to remove, and women should wear bras that are easy to remove;

Wear pants that are free of metallic materials, such as sports pants with elastic straps or hospital prepared inspection clothing;

be careful:

If there is a medicated application such as a plaster, magnetic resonance imaging may cause burns and burns to the skin;

Some cosmetics also contain metal substances, so it is best not to use makeup on that day, including nail polish, antiperspirants, sunscreen, etc., and hair care products are also best not to use;

The pigment in the tattoo can also cause burns, so a doctor should be consulted;

Accompanying family members should also remove metal or electromagnetic substances;

If there is a lot of noise during the inspection, you can wear earplugs in advance.

Preparation of internal implants

If there is any metal or metal implant under the skin, please consult a doctor in advance to determine whether it is safe, including:

Implanted cardiac or vascular instruments such as cardiovascular stents, implantable cardioverter defibrillators, or metal heart valves (especially metal ball/mesh format);

Brain aneurysm clip;

There are metal needles, metal clips, or metal parts in the body, including metal prostheses, metal teeth, or metal supports;

Implantation of other medical instruments, including insulin pumps, anesthesia pumps, nerve stimulators, implanted medical infusion pumps, or cochlear implants;

Beauty decoration articles containing metal, including eyes or eye sockets with metal substances such as earrings or tattooed eyeliner.

Whether it can be done or not depends on two important factors: the nature of the implant material and the magnetic resonance field strength.

Materials with plastic properties can be used for magnetic resonance;

Commonly used titanium alloy implants are nonmagnetic or weakly magnetic, and most are compatible with nuclear magnetic resonance (preferably with a magnetic resonance field strength not exceeding 3.0T);

Implant materials made of steel cannot undergo nuclear magnetic resonance 100%.

Generally speaking, the following situations may not be able to conduct an MRI examination:

Recently underwent vascular surgery;

Equipped with an intrauterine device.

Nuclear magnetic resonance inspection is strictly prohibited under the following circumstances:

Equipped with a cardiac pacemaker;

Critical patients who require monitoring equipment.

If patients with ferromagnetic materials such as shrapnel, steel nails, and false joints must undergo magnetic resonance examination, they should be closely observed to prevent accidents.

The preparation that a patient needs to make is to inform the doctor clearly and in detail about the status of their internal implants. It is best to inform the doctor of detailed information such as the model of the implanted device at the time. Therefore, it is crucial to preserve information about your own case and any substances placed in the body. After each visit, keep relevant materials in one place or take photos to save them.

2. Preparation related to food and water prohibition

Generally, you can eat as usual before an MRI examination, but in the following two cases, you need to fast and water in advance:

Do not eat or drink for a few hours before an MRI examination of the abdomen or pelvis;

Patients who need to receive sedatives should not consume any solid food 6 hours before the injection to prevent nausea after the injection. Water should be prohibited 2 hours before the injection, but a small amount of clear liquid such as water can be consumed 2 hours before the injection.

3. Precautions related to contrast agents

Contrast agents can cause allergies and affect body metabolism. Therefore, if contrast agents are needed (some do not need them), patients should inform their doctors in advance:

Is there any allergy to the components of contrast media? The contrast media used for nuclear magnetic resonance examination generally do not contain iodine, but may contain barium, gadolinium, etc;

If you have other diseases, such as diabetes, kidney problems or coagulation disorders, sickle cell anemia, you may not be able to use contrast agents.

4. Precautions for special groups

In an MRI magnetic field, it is necessary to maintain a resting posture. Patients with claustrophobia, infants who cannot maintain silence, need to use sedatives during the examination process.

主站蜘蛛池模板: 又粗又大又长又爽黄少妇毛片 | 女子自慰喷白浆A片免费观看网站 | 亚洲av性爱在线 | 色噜噜人妻丝袜a∨先锋影 国产AV一区二区三区精品 | 无遮挡肉欲少妇A片 | 美女污视频在线免费观看 | 精品人妻系列无码人妻在线不 | 国产色色精品一二 | caoprom超碰 | 苍井空做爰高潮A片久久直播 | 国产精品无码一区二区三级不卡不 | 男人的天堂av直线播放 | 中文字幕一区二区三区人妻少妇在线 | 91久久精品美女高潮喷白浆 | 国产XXXX揉XXXX | 丰满少妇无内裤激情A片 | 国产女人18毛片水真多18精品 | 西西中文字幕无码在线播放 | 国产无套孕妇白浆内谢 | 亚洲日韩欧美五月蜜桃天天 | 无码人妻精品一区二区三区温州 | 小草AV一区二区三区 | 欧洲欧美亚洲色呦呦 | 欧炎性爱XXXX | 欧美搡BBBBB摔BBBBB| A一级夫妻生活在线观看视频 | 99视频内射三四 | 国产中日韩噜久久 | 国产成人在线免费电影 | 日本a片免费在线观看 | 2022国产精品一级毛片 | 无码一二三区A片内谢 | 欧美成人午夜无码A人与鲁 日韩无码看片毛片网站黄色 | 少妇的嫩苞一级A片 | 91成人做爰A片 | 日韩欧美精品无码视频 | 国产不卡AV在线播放 | 免费观看的黄色视频网站 | 久久久欧美成人片免费看 | 国产午夜AV最新在线 | 少妇被又大又粗黑人 |